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Acknowledgments
I would like to thank Paris Buttfield-Addison for urging me (repeatedly) to write this book. He and his partner-in-crime, Jon Manning, suffer from boundless optimism and seem to regard no as a challenge rather than as a defeat. Id also like to thank Rachel Roumeliotis and the other fine folk at OReilly for having faith in me and for shepherding the project through to completion. Special thanks also go to the readers of the early release editions, who took the time to provide feedback and suggestions for improvement, for which Im deeply grateful.